Sewing – Special machines – Buttonhole
Patent
1981-08-20
1983-05-24
Feldbaum, Ronald
Sewing
Special machines
Buttonhole
D05C 1500
Patent
active
043845380
ABSTRACT:
A staggered needle cut pile tufting machine having needle plate backing support fingers oscillated in timed relationship with the hooks and the needles of the machine to support the backing material during needle penetration and to withdraw from the needle path as the hooks move across the needle path to seize respective loops. The support fingers are substantially straight parallel members with alternate fingers being elongated relatively to the remaining fingers so that the fingers provide support of the backing material adjacent the penetration points of the respective staggered needles in the front and rear rows. The straight parallel fingers provide clearance for the needle plate to be withdrawn from the needle array so that a path is provided for the hooks to be closely adjacent the backing material for forming very low fine gauge cut pile fabrics. The fingers are mounted in a modular block member within which they are cast, the modules being mounted on a rocker arm carried by a common rock shaft with the rocker arm on which the hooks are mounted so that the fingers oscillate in opposition to the oscillation of the hooks.
REFERENCES:
patent: 3064600 (1962-11-01), Card
patent: 4193359 (1980-03-01), Beasley
patent: 4303025 (1981-12-01), Bardsley
Feldbaum Ronald
Ruderman Alan
Spencer Wright Industries, Inc.
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